Pittsburgh, Pennsylvania: Doubleday-Hill Electric Co 1916. First Edition. 1475 pages. Thick 4to. (7 1/2 x 10 1/4 inches) Publisher's printed two tone yellow cloth. Covers soiled, bumped at corners. Sound. Last hundred pages with marginal dampstaining lower right corner. Occasional dampstaining at corner tips elsewhere. Well illustrated, occasionally in color. Good. Cloth. 
Printed by R. R. Donnelley & Sons Co. An extensive General Catalogue by this supplier and manufacturer. In addition to supplying a wide range of materials, they also manufacture and repair many components of large industrial systems. They make Armature Coils, Field Coils, Commutators, Testing Machines, Experimental Apparatus. They repair Dynamos, Motors, Armatures, Commutators, Electrical Instruments, Magnetos (all kinds), self starters, generators, electric fans, strop copper armature and reinsulate coils. A list in the front includes 26 manufacturers they distribute for, including G-E Edison Mazda Lamps, Emerson Fans and Motors, Robbins Myers Fans and Motors, Gould Storage Batteries, Columbia Batteries, De Veau Telephones, Weston Instruments, etc etc
Major catalog sections include Wire/Cable; Porcelain & insulators ; Conduit Condulets ; Sockets/Receptacles ; Switches/Cutouts/Fuses; Controllers/Motors (including lighting switchboards); Appliances/Fans ; Instruments/Meters; Lamps/Street Fixtures ; Railway/Pole Line materials ; Tools/Insulating Materials ; Heating Devices/Telephones ; Annunciators/Batteries/Bells ; and Ignition Fixture/Reflectors.
The range of materials offered is stupendous based on the time period. Everything from X-Ray Reflectors to Marine Lanterns to Patterson Battery Sets to Telephones to Universal lunch sets (what tech doesn't want to eat?) to fire pot and torch repair parts to Cutter Mazdaarcs. A remarkable selection, and of some importance for those studying industrial supply in the period.
Catalogs from this maker are genuinely rare. We've only been able to find a copy of their 1920 catalog which sold in 2014 at auction. Not in Davis and Dreyfus or Romaine (the later only covers through 1900). Not in OCLC/Worldcat. Many historic radio sites note some items from the company, all noting it was a major distributor. While clearly likely given the size of this catalog, we've been unable to trace much beyond advertisements for the company in various newspapers and trade publications through the 1920s. Another (?) company with the same name appears in the 1940s.